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| A New Pakchoi F1 Hybrid —‘Jingguan No. 3’ |
| ZHAO Xiu-yun，ZHANG Feng-lan*，XU Jia-bing，YU Yang-jun，ZHANG De-shuang，YU Shuancang，LU Gui-xiang，WANG Wei-hong |
| Vegetables Research Center，Beijing Academy of Agriculture and Forestry Science，Beijing 100097，China |
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Abstract ‘Jingguan No. 3’is a new pakchoi F1 hybrid developed by crossing 2 self-incompatible lines Y284 and Y231．Its leaves are green．The plant type is semi erect．It grows rapidly with vase shape．The petiole is green and good commercial appearance，4.7 cm in width and 1.1 cm in thickness．The average single plant weight is 0.28 kg and its yield is 37.5-45.0 t·hm-2．It is highly resistant to TuMV and downy mildew and resistant to black spot．It is suitabl e for summer and autumn cultivation．
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Received: 24 June 2013
Published: 24 July 2013
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